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Expired Canadian patentCanada

Method and apparatus for targeting of interactive virtual objects

CA 2759751 C · Owner: Comcast Ip Holdings I. Llc · Inventors: Asmussen, Michael L.; Hendricks, John S.; Mccoskey, John S.

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Abstract From the Canadian patent

A method and an apparatus are used to target interactive virtual objects to subscribers in a television delivery system. Programs are selected and virtual object , locations are defined in the selected programs. The virtual objects (1265) available for , targeting categorized and categories are correlated to subscriber information (1210) to , determine the optimum targeting of the virtual objects (1260). The virtual objects may , be targeted (1220) based on individual subscriber information (1210) or an on information related to a group of subscribers. When a frame of program includes a , virtual object location, a default or an alternate virtual object is displayed. The virtual , …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed October 10, 2002 and granted March 22, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 10, 2002
GrantedMarch 22, 2016
Term endedOctober 10, 2022
Patent numberCA 2759751 C
Classification (IPC)H04N21/80 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedOct 10, 2002Patent grantedMarch 22, 2016Term endedOct 10, 2022

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.